I recently bought a flat screen tv to mount on one of my living room walls, but I feel that the dangling cords will kill its sleek look. It is a rental so I cannot make big holes in the walls to pass the cords behind them...I was thinking of hiding the cords through a galvanized steel or copper piping system that fits the industrial vintage feel of my living room (I already have pipe shelves). However, I was wondering if running cords through metallic pipes would be dangerous?? I don't want someone to be electrocuted by touching the pipes...By the way, painting plastic pipes the colour of my wall is not really an option: the wall have a grey faux finish that gives them a concrete look. :-S